Working with Hash Values

Code Samples

For the examples below, we'll be working with this hash:

hash = { "item" => "Bread", "quantity" => 1, "brand" => "Treehouse Bread Company" }

To return an array of the values in the hash, we can use the values method:

hash.values

Which would return the following:

["Bread", 1, "Treehouse Bread Company"]

The has_value? method takes one argument and returns true or false if the value is contained within the hash:

hash.has_value?("brand")

That would return false since "brand" isn't a value. However, the following would return true:

hash.has_value?("Bread")

The values_at method takes several arguments and returns the hash values at the specified keys as an array:

hash.values_at("quantity", "brand")

That would return:

[1, "Treehouse Bread Company"]